Lecture 34- Pseudomonas and related

Question 1

What organisms fall under pseudomonas and related organisms?

Answer 1

Pseudomonas aeruginosa
Acenetobacter
Bordetella pertussis
Legionella pneumophila

Question 2

Describe the occurrence of psedumonas aeruginosa

Answer 2

found everywhere
nosocomial infection
oppertunist
very,very resistant to triclosan (super bug)

Question 3

Name some examples of Pseudomonas aeruginosa infections

Answer 3

wound infections (14% of patient deaths with bacteremia, 75% of burn victim deaths)
superficial skin infections (athlete’s foot, bed sores, eczema, hot tub dermatitis)
UTI (complicated- instrumentation)
eye infections (contact lenses)
pneumonia
osteomyolitis
OTIC (ear)- swimmer’s ear

Question 4

How do you treat Pseudomonas infections?

Answer 4

UTI- Ciprofloxacin

Other- gentimycin and ticarcillin (synergism)

Question 5

Describe bordetella pertussis

Answer 5

causes whooping cough in kids under 7
spasmodic cough- can lead to lung collapse, death
DTaP vaccine for kids
Tdap vaccine for adolescents
Treat with erythromycin, azithromycin, or clarithromycin

Question 6

Describe legionella pneumophila

Answer 6

legionnaire’s disease- atypical pneumonia
ID50 is 1
associated with dirty water (air conditioners)
DOC is azithromycin